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v3.20.4

Net Other Operating Income (Details) - CAD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jul. 20, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of types of insurance contracts [line items] |  |  |  |
Onerous contracts provision |  | $ 29 |  |
Alberta off-coal agreement, annual cash payments, gross | $ 40 | 40 | $ 40 | $ 40
Alberta off-coal agreement, annual cash payments, net | $ 37 |  |  |
Insurance recoveries |  | $ 0 | $ 10 | 7
Alberta Thermal | Equipment Repair [Member] |  |  |  |
Disclosure of types of insurance contracts [line items] |  |  |  |
Insurance recoveries |  |  |  | 1
Wyoming Wind [Member] |  |  |  |
Disclosure of types of insurance contracts [line items] |  |  |  |
Insurance recoveries |  |  |  | $ 6

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- Definition The amount of income recognised from the reimbursement of a claim as a result of the occurrence of an insured event covered by an insurance contract. [Refer: Types of insurance contracts [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of provision for onerous contracts. An onerous contract is a contract in which the unavoidable costs of meeting the obligation under the contract exceed the economic benefits expected to be received under it. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 37 -IssueDate 2019-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2019-en-r&anchor=para_66&doctype=Standard -URIDate 2019-03-27 + Details
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